wallace



(Nb Model.) 2 Sheets-Sheet '1.

M. E. WALLACE.

OAR BUFFER.

No. 489,135. Patented Jan. 3, 1893.

No Model.) 2 Sheets-Sheet 2. M. E. WALLACE.

GAR BUFFER.

Patented Jan. 3, 1893.

4T v in the several figures. A

- A represents the longitudinal I timbers of L'UNITJED STATES, PATENT OFFIcn.

MARTIN E. WALLACE, OF AURORA, COUPLER COMPANY,

ILLINOIS, ASSIGNOR to THE GOULD on NEW YORK, N. Y..

CAR-BUFFER.

v SPECIFICATION forming part of Letters Patent No. 489,135, dated January 3, 1893.

Application filed September 29,1892. Serial No. 447,245. (No model.)

nois, have invented a new and useful Im-- provement in Car-Buffers, of which the following is a specification."

This invention relates to that class of railway cars which are provided with a spring buffer or platform extension which bears against the platform of an adjoining car, in

. which the springmechanism of the platform is caused to move outward with the draw bar.

"lhese. buffers orplatform extensions are cars and a light spring which serves princi-.-

usually provided with a heavy buffer spring which opposes violent shoclisreceivedby the pally-to push out the platform extension and keep it in yielding contact with the platform offan adjoining car.

'The object of my invention-is to so construct this spring mechanism that the heavy buffer spring assists in holding the platform in its projected position when the draw bar,

is pulled outward, soas to relieve the light spring and preserve its power.

In the accompanying drawings consisting of two sheets :Figure 1 is a sectional top plan view of the platform of a railway car provided with my improvement, the flooring being omitted to expose the parts below. Fig. 2 is a central longitudinal section of the platform.

Fig.- 3 is a transverse section in line w-aa; Fig. 2 Fig. 4 is adetached longitudinal se'ction of the'socketor rear abutment of the buffer and platform extension springs' Fig.

:5 isa'front'viewof said socket. Fig. 6' is a .long'it'udinal'section of a modified construction of myim'provement.

. Like l'etters''f reference refer to like parts the stationary car platform, B the end orcross timber thereof, and O the end sill of the car.

' Dis the draw bar of the car arranged u nderneath'the stationary platform and. having 4 the usual buffer springer springs d.

E is the buffer or movable platform exten- 'sion' which preferably consists of a transverse vertical buffer plate carrying at its u pp'er end a horizontal threshold plate e which extends inwardly over the end timber B.

F is the buffer bar or stem which carries the platform extension E and which is guided with its outer portion in an opening formed in the end timber B. -buifer bar passes through a longitudinally movable socket or follower G and is guided in a tubular stem g formed at the rear end of. the'socket. This tubular stem isloosely fitted in a cylindrical recess g formed in a buffer block G secured between the longitudinal timbers A of the stationary platform.

' H represents the light spiral spring whereoutward. This spring sn rrounds the rear portion of the buffer bar F and bears with its frontend against a collar or shoulder hformed on the bnfier bar and with its rear end against the bottom of the socket or follower G. The latter abuts against the front'side of the buffor block when in its rearmost position.

form extension which receives the heavy shocks which overcome the resistance of the li ht extension spring H. This main spring surrounds. the bufier stem F andis interposed lower G and the shonlderh of the bufier stem. The main spring is shorter than the platform extensio'n'spring so as not to come into action until after the extension spring has been compressed. I

j is a lug or projection arranged on the upper side of the draw bar D and It is a similar lug arranged on the under side of the socket or follower G in the path of the lug on the draw bar, so that when the draw bar is pulled outward, its lug strikes the lug of the socket and causes the latter to move ontwardlywith the draw bar. This outward movement of the socket causes the light extension spring of the socket and the collar 71. of the buffer bar and also causes the main spring to move forward and bear with its front end against the collar h, so as'to resist the inward moveequalize'd in all positions of the platform ex- The rear portionof the by the bufier or extension platform Eis pushed.

I is the main spring of the buffer or platbetween the front end of'the socket or folto be further compressed between the bottom ment-of the platform extension. The tension of the light spring is thus maintained and ,roo

tension, and the main spring is at the same time utilized for assisting in projecting the platform extensionand keepingit in contact with the platform of an adjoining car, thereby relieving the light spring and preventing -Weakening of the same. a

- socket and passes through alongitudinal slot Z formed in the front end of the coupling bar. This slot permits the outer end of the coupling bar to slide inwardly on the pin l without afiecting the socket.

I claim as myinventionzl. The combination With the stationary; platform of a railway car, the longitudinally movable draw bar and a buffer or platform extension movable on the stationary platform, of a follower guided on the stationary platform, abufferspring bearing with its inner end against said follower, a platform extension spring also bearing with its inner end against said follower and extending normally beyond the outer end of the hufi'er spring, whereby the inner ends of both ef said springs are moved forwardwith the follower and means,

seams 2. ihe combination with the stationary platform of a railway car, the longitudinally movable draw bar, and a bufier or platformextension movable on the station ary platform,

of a follower-socket guided on the stationary platform, a platform extension spring bearing with its inner end against the bottom of said follower-socket, a buffer spring bearing with its innerend against the front end of saidsocket, wherebythe inner ends of both of said springs are moved forward with the socket,

l and means, substantially as described, where a socket guided on the stationary platform, a

platformrextension spring vbearing with-"its inner end against the bottom of said socket,

a butter spring abutting with its inner end against the front end of said socket, and the longitudinally, movable draw bar having alug or projection adapted to engage against the projectionof the follower socket when the set forth.

Witness my hand this'l9th day of Septem ber, 1892.

' MARTIN E; WALLACE.

Witnesses:

F. P. HUNTLEY, W. S. BEAUPRE.

6c draw bar is pulled outward, substantially as v 

